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When selecting valve cover gaskets, head gaskets, and spark plugs, it is essential to prioritize quality, compatibility, and performance. High-quality gaskets and spark plugs are designed to withstand the demanding conditions of automotive operation, providing reliable sealing solutions and efficient ignition capabilities. Choosing reputable suppliers and manufacturers known for producing high-quality components is crucial to ensure the reliability and longevity of these critical engine components.
Conventional oil seals
1) Oil seals for cars

An oil seal consists of:
Offering a much more superior temperature resistance, polyacrylate seals are perfect for applications such as high surface speed oil. Benefits include:
Why use NOK-CN factory-made oil seals?
High Mileage Motor Oil
There is a British Standard laid down for the control of synthetic rubbers. BS 3574 (1989) helps to determine shelf life – for instance, Nitrile (NBR) and Polyacrylic (ACM) are Group ‘B’ rubbers and have a 7-year life, whilst Silicone (VMQ) and Fluoroelastomers (Viton®) are Group ‘C’ rubbers and have a 10-year shelf life. PTFE and Leather do not come into this category but like the others should be kept in the original packing for as long as possible away from direct light, dust, and humidity. Ozone, which can also be produced by battery-driven forklift trucks has a very bad effect on synthetic rubbers. Finally, protect the sealing lip – DO NOT hang the seals on nails, wire etc.


When selecting the oil seal that is right for your machine, it is important that the oil seal be appropriate for the requirements of the usage environment and that it be easily acquired for replacement.
In this month's column, How to select the right oil seal, we conveyed the following points:
1) Oil seal shape and material should be selected based on the housing, substance to be sealed, pressure, rotational speed, total eccentricity, and air-side conditions.
2) Oil seals can show good sealing performance in combination with properly designed shafts and housings.
3) Oil seal performance is affected by not only the type and material of the selected oil seal, but also a variety of other factors, such as operating conditions, total eccentricity, rotational speed, the substance to be sealed, and lubrication conditions. For this reason, diligent care is required in oil seal selection.